Here is an excellent specimen of the rare phosphate mineral from the Coon creek mine in Arkansas, and old locality for a number of rare phosphate minerals, also like Strengite and Beraunite, Rockbridgeite, etc... mining took place from the 60's to the 1980's, and specimens are now much more rarely seen.  This is an excellent and rich specimen for this species, comes with an old collection label. It might look ordinary on the surface, but if you look closer, and/or know how to look, you'll see this is actually very good for species and locality, in terms of size and quality. (I do have a small rockbridgeite piece and decent Strengite from the locality as well, which I will add in free of charge for whomever buys this piece...)This specimen is 128 grams, or 4.5 oz.The size is 2.5 inch x 2.5 inch x 1.5 inch. Please be advised, I ship with Ground Advantage.